Wet air is colder than the dry air. Drying the air space restores the window to that of a dead air space window which has an R value of about 4.2 for dual pane windows and 5.6 for triple pane.
Wet air is colder than the dry air. Drying the air space restores the window to that of a dead air space window which has an R value of about 4.2 for dual pane windows and 5.6 for triple pane.